During the production of hydrogen peroxide, activated alumina is a commonly used adsorbent material. For enterprises that need to purchase or replace activated alumina, in addition to paying attention to indicators such as adsorption performance, mechanical strength, and bulk density, particle size is also a very important selection factor.
There are various particle size specifications of activated alumina products on the market, for example, the ALUSORB-H2O2 activated alumina produced by Zibo Xiangrun Environmental Engineering Co., Ltd. has specifications such as 7×14 mesh, 1/8'', and 3/16''. Products with different particle sizes may differ in bed structure, gas-liquid contact, mass transfer efficiency, pressure drop, and actual operating performance.
Is the Effect of Activated Alumina Used for Hydrogen Peroxide Better with Smaller Particle Size?
Many customers believe that the smaller the particles, the larger the specific surface area, and therefore the better the adsorption effect. However, in reality, the actual performance of activated alumina is not determined by a single particle size indicator.
If the particles are too small, although this may help shorten the mass transfer distance, filling with a large amount of small particles may increase bed resistance and cause the pressure drop to rise. In continuous industrial production, if the equipment needs to operate stably for a long time, excessive pressure drop is not an ideal condition.
At the same time, particle size also affects the void ratio, fluid distribution, and packing condition in the bed. Therefore, for industrial hydrogen peroxide production equipment, when selecting activated alumina, it is necessary to consider overall operating efficiency rather than simply pursuing a smaller particle size.
On the contrary, if the particles are too large, although this may help reduce bed resistance, the mass transfer distance and actual adsorption efficiency also need to be considered.
Therefore, a more accurate statement should be:
An appropriate particle size is more important than simply pursuing a smaller or larger particle size.
What Situations Is 7×14 Mesh Suitable for?
7×14 mesh is a relatively common specification among industrial activated alumina products.
For industrial adsorption beds that require particle packing, this specification can achieve a certain balance between particle size and bed operation.
Therefore, if a customer is changing suppliers, the safest method is not to select the particle size directly based on the product name, but to refer to the activated alumina specification used in the existing equipment.
What Are the Characteristics of 1/8'' Activated Alumina?
1/8 inch is a relatively common imperial particle size specification in the industrial field and is also relatively common in procurement by overseas customers.
Compared with smaller particle size specifications, 1/8 inch particles can form a relatively stable bed structure and are suitable for some equipment with requirements for bed pressure drop and fluid flow performance.
If the customer's equipment design, historical procurement specifications, or process documents have clearly specified 1/8 inch, prioritizing the selection of the same or similar specification is usually more reliable than changing the particle size based solely on theoretical parameters.
At the same time, when selecting 1/8 inch activated alumina, attention should also be paid to the mechanical strength and abrasion of the particles. For industrial equipment operating for a long time, excessive powdering of particles during transportation, loading, and operation may affect the bed condition.
What Situations Is 3/16 Inch Activated Alumina Suitable for?
3/16 inch is a relatively large particle size specification.
For some applications that require larger particle sizes, lower bed resistance, or equipment designed according to this specification, 3/16 inch activated alumina can be considered.
However, larger particles do not mean that the product performance is necessarily better. If the equipment has high requirements for mass transfer efficiency, adsorption speed, and other aspects, it is necessary to make a judgment based on actual operating conditions.
Therefore, for specifications such as 3/16 inch, it is recommended that customers provide the equipment parameters and original adsorbent specifications to the supplier before purchasing, so that the manufacturer can match the product according to the actual situation.
ALUSORB-H2O2: Selection of Activated Alumina for Hydrogen Peroxide Applications
For hydrogen peroxide-related applications, ALUSORB-H2O2 is a specialized activated alumina product model launched by Zibo Xiangrun Environmental Engineering Co., Ltd.
As a professional alumina manufacturer, Zibo Xiangrun Environmental Engineering Co., Ltd. has long focused on the production and supply of activated alumina, alumina adsorbents, and related alumina products, and provides industrial activated alumina products in different specifications to customers worldwide.
ALUSORB-H2O2 can provide different particle size specifications according to customer equipment and usage requirements, including:
7×14 mesh
1/8 inch
3/16 inch
During the actual procurement process, customers can select the corresponding particle size according to their existing equipment, bed design, and original product specifications. If you have any questions or requirements regarding activated alumina, please feel free to contact Zibo Xiangrun Environmental Engineering Co., Ltd. - a professional alumina manufacturer.
